Remove child nodes from the language spec TOC (dotnet#2870)

* Remove child nodes from the language spec TOC

These were causing build problems with PDF generation.

* fixed link format

* fixed link

docs/csharp/language-reference/language-specification/toc.md

@@ -1,152 +1,19 @@
 # [C# 6.0 draft specification](index.md)
-## [Lexical structure](../../../../_csharplang/spec/lexical-structure.md#lexical-structure)
-### [Programs](../../../../_csharplang/spec/lexical-structure.md#programs)
-### [Grammars](../../../../_csharplang/spec/lexical-structure.md#grammars)
-### [Lexical analysis](../../../../_csharplang/spec/lexical-structure.md#lexical-analysis)
-### [Tokens](../../../../_csharplang/spec/lexical-structure.md#tokens)
-### [Pre-processing directives](../../../../_csharplang/spec/lexical-structure.md#pre-processing-directives)
-## [Basic concepts](../../../../_csharplang/spec/basic-concepts.md#basic-concepts)
-### [Application Startup](../../../../_csharplang/spec/basic-concepts.md#application-startup)
-### [Application termination](../../../../_csharplang/spec/basic-concepts.md#application-termination)
-### [Declarations](../../../../_csharplang/spec/basic-concepts.md#declarations)
-### [Members](../../../../_csharplang/spec/basic-concepts.md#members)
-### [Member access](../../../../_csharplang/spec/basic-concepts.md#member-access)
-### [Signatures and overloading](../../../../_csharplang/spec/basic-concepts.md#signatures-and-overloading)
-### [Scopes](../../../../_csharplang/spec/basic-concepts.md#scopes)
-### [Namespace and type names](../../../../_csharplang/spec/basic-concepts.md#namespace-and-type-names)
-### [Automatic memory management](../../../../_csharplang/spec/basic-concepts.md#automatic-memory-management)
-### [Execution order](../../../../_csharplang/spec/basic-concepts.md#execution-order)
-## [Types](../../../../_csharplang/spec/types.md#types)
-### [Value types](../../../../_csharplang/spec/types.md#value-types)
-### [Reference types](../../../../_csharplang/spec/types.md#reference-types)
-### [Boxing and unboxing](../../../../_csharplang/spec/types.md#boxing-and-unboxing)
-### [Constructed types](../../../../_csharplang/spec/types.md#constructed-types)
-### [Type parameters](../../../../_csharplang/spec/types.md#type-parameters)
-### [Expression tree types](../../../../_csharplang/spec/types.md#expression-tree-types)
-### [The dynamic type](../../../../_csharplang/spec/types.md#the-dynamic-type)
-## [Variables](../../../../_csharplang/spec/variables.md#variables)
-### [Variable categories](../../../../_csharplang/spec/variables.md#variable-categories)
-### [Default values](../../../../_csharplang/spec/variables.md#default-values)
-### [Definite assignment](../../../../_csharplang/spec/variables.md#definite-assignment)
-### [Variable references](../../../../_csharplang/spec/variables.md#variable-references)
-### [Atomicity of variable references](../../../../_csharplang/spec/variables.md#atomicity-of-variable-references)
-## [Conversions](../../../../_csharplang/spec/conversions.md#conversions)
-### [Implicit conversions](../../../../_csharplang/spec/conversions.md#implicit-conversions)
-### [Explicit conversions](../../../../_csharplang/spec/conversions.md#explicit-conversions)
-### [Standard conversions](../../../../_csharplang/spec/conversions.md#standard-conversions)
-### [User-defined conversions](../../../../_csharplang/spec/conversions.md#user-defined-conversions)
-### [Anonymous function conversions](../../../../_csharplang/spec/conversions.md#anonymous-function-conversions)
-### [Method group conversions](../../../../_csharplang/spec/conversions.md#method-group-conversions)
-## [Expressions](../../../../_csharplang/spec/expressions.md#expressions)
-### [Expression classifications](../../../../_csharplang/spec/expressions.md#expression-classification)
-### [Static and Dynamic Binding](../../../../_csharplang/spec/expressions.md#static-and-dynamic-binding)
-### [Operators](../../../../_csharplang/spec/expressions.md#operators)
-### [Member lookup](../../../../_csharplang/spec/expressions.md#member-lookup)
-### [Function members](../../../../_csharplang/spec/expressions.md#function-members)
-### [Primary expressions](../../../../_csharplang/spec/expressions.md#primary-expressions)
-### [Unary operators](../../../../_csharplang/spec/expressions.md#unary-operators)
-### [Arithmetic operators](../../../../_csharplang/spec/expressions.md#arithmetic-operators)
-### [Shift operators](../../../../_csharplang/spec/expressions.md#shift-operators)
-### [Relational and type-testing operators](../../../../_csharplang/spec/expressions.md#relational-and-type-testing-operators)
-### [Logical operators](../../../../_csharplang/spec/expressions.md#logical-operators)
-### [Conditional logical operators](../../../../_csharplang/spec/expressions.md#conditional-logical-operators)
-### [The null coalescing operator](../../../../_csharplang/spec/expressions.md#the-null-coalescing-operator)
-### [Conditional operator](../../../../_csharplang/spec/expressions.md#conditional-operator)
-### [Anonymous function expressions](../../../../_csharplang/spec/expressions.md#anonymous-function-expressions)
-### [Query expressions](../../../../_csharplang/spec/expressions.md#query-expressions)
-### [Assignment operators](../../../../_csharplang/spec/expressions.md#assignment-operators)
-### [Expression](../../../../_csharplang/spec/expressions.md#expression)
-### [Constant expressions](../../../../_csharplang/spec/expressions.md#constant-expressions)
-### [Boolean expressions](../../../../_csharplang/spec/expressions.md#boolean-expressions)
-## [Statements](../../../../_csharplang/spec/statements.md#statements)
-### [End points and reachability](../../../../_csharplang/spec/statements.md#end-points-and-reachability)
-### [Blocks](../../../../_csharplang/spec/statements.md#blocks)
-### [The empty statement](../../../../_csharplang/spec/statements.md#the-empty-statement)
-### [Labeled statements](../../../../_csharplang/spec/statements.md#labeled-statements)
-### [Declaration statements](../../../../_csharplang/spec/statements.md#declaration-statements)
-### [Expression statements](../../../../_csharplang/spec/statements.md#expression-statements)
-### [Selection statements](../../../../_csharplang/spec/statements.md#selection-statements)
-### [Iteration statements](../../../../_csharplang/spec/statements.md#iteration-statements)
-### [Jump statements](../../../../_csharplang/spec/statements.md#jump-statements)
-### [The try statement](../../../../_csharplang/spec/statements.md#the-try-statement)
-### [The checked and unchecked statements](../../../../_csharplang/spec/statements.md#the-checked-and-unchecked-statements)
-### [The lock statement](../../../../_csharplang/spec/statements.md#the-lock-statement)
-### [The using statement](../../../../_csharplang/spec/statements.md#the-using-statement)
-### [The yield statement](../../../../_csharplang/spec/statements.md#the-yield-statement)
-## [Namespaces](../../../../_csharplang/spec/namespaces.md#namespaces)
-### [Compilation units](../../../../_csharplang/spec/namespaces.md#compilation-units)
-### [Namespace declarations](../../../../_csharplang/spec/namespaces.md#namespace-declarations)
-### [Extern aliases](../../../../_csharplang/spec/namespaces.md#extern-aliases)
-### [Using directives](../../../../_csharplang/spec/namespaces.md#using-directives)
-### [Namespace members](../../../../_csharplang/spec/namespaces.md#namespace-members)
-### [Type declarations](../../../../_csharplang/spec/namespaces.md#type-declarations)
-### [Namespace alias qualifiers](../../../../_csharplang/spec/namespaces.md#namespace-alias-qualifiers)
-## [Classes](../../../../_csharplang/spec/classes.md#classes)
-### [Class declarations](../../../../_csharplang/spec/classes.md#class-declarations)
-### [Partial types](../../../../_csharplang/spec/classes.md#partial-types)
-### [Class members](../../../../_csharplang/spec/classes.md#class-members)
-### [Constants](../../../../_csharplang/spec/classes.md#constants)
-### [Fields](../../../../_csharplang/spec/classes.md#fields)
-### [Methods](../../../../_csharplang/spec/classes.md#methods)
-### [Properties](../../../../_csharplang/spec/classes.md#properties)
-### [Events](../../../../_csharplang/spec/classes.md#events)
-### [Indexers](../../../../_csharplang/spec/classes.md#indexers)
-### [Operators](../../../../_csharplang/spec/classes.md#operators)
-### [Instance constructors](../../../../_csharplang/spec/classes.md#instance-constructors)
-### [Static constructors](../../../../_csharplang/spec/classes.md#static-constructors)
-### [Destructors](../../../../_csharplang/spec/classes.md#destructors)
-### [Iterators](../../../../_csharplang/spec/classes.md#iterators)
-## [Structs](../../../../_csharplang/spec/structs.md#structs)
-### [Struct declarations](../../../../_csharplang/spec/structs.md#struct-declarations)
-### [Struct members](../../../../_csharplang/spec/structs.md#struct-members)
-### [Class and struct differences](../../../../_csharplang/spec/structs.md#class-and-struct-differences)
-### [Struct examples](../../../../_csharplang/spec/structs.md#struct-examples)
-## [Arrays](../../../../_csharplang/spec/arrays.md#arrays)
-### [Array types](../../../../_csharplang/spec/arrays.md#array-types)
-### [Array creation](../../../../_csharplang/spec/arrays.md#array-creation)
-### [Array element access](../../../../_csharplang/spec/arrays.md#array-element-access)
-### [Array members](../../../../_csharplang/spec/arrays.md#array-members)
-### [Array covariance](../../../../_csharplang/spec/arrays.md#array-covariance)
-### [Array initializers](../../../../_csharplang/spec/arrays.md#array-initializers)
-## [Interfaces](../../../../_csharplang/spec/interfaces.md#interfaces)
-### [Interface declarations](../../../../_csharplang/spec/interfaces.md#interface-declarations)
-### [Interface members](../../../../_csharplang/spec/interfaces.md#interface-members)
-### [Fully qualified interface member names](../../../../_csharplang/spec/interfaces.md#fully-qualified-interface-member-names)
-### [Interface implementations](../../../../_csharplang/spec/interfaces.md#interface-implementations)
-## [Enums](../../../../_csharplang/spec/enums.md#enums)
-### [Enum declarations](../../../../_csharplang/spec/enums.md#enum-declarations)
-### [Enum modifiers](../../../../_csharplang/spec/enums.md#enum-modifiers)
-### [Enum members](../../../../_csharplang/spec/enums.md#enum-members)
-### [The System.Enum type](../../../../_csharplang/spec/enums.md#the-systemenum-type)
-### [Enum values and operations](../../../../_csharplang/spec/enums.md#enum-values-and-operations)
-## [Delegates](../../../../_csharplang/spec/delegates.md#delegates)
-### [Delegate declarations](../../../../_csharplang/spec/delegates.md#delegate-declarations)
-### [Delegate compatibility](../../../../_csharplang/spec/delegates.md#delegate-compatibility)
-### [Delegate instantiation](../../../../_csharplang/spec/delegates.md#delegate-instantiation)
-### [Delegate invocation](../../../../_csharplang/spec/delegates.md#delegate-invocation)
-## [Exceptions](../../../../_csharplang/spec/exceptions.md#exceptions)
-### [Causes of exceptions](../../../../_csharplang/spec/exceptions.md#causes-of-exceptions)
-### [The System.Exception class](../../../../_csharplang/spec/exceptions.md#the-systemexception-class)
-### [How exceptions are handled](../../../../_csharplang/spec/exceptions.md#how-exceptions-are-handled)
-### [Common Exception Classes](../../../../_csharplang/spec/exceptions.md#common-exception-classes)
-## [Attributes](../../../../_csharplang/spec/attributes.md#attributes)
-### [Attribute classes](../../../../_csharplang/spec/attributes.md#attribute-classes)
-### [Attribute specification](../../../../_csharplang/spec/attributes.md#attribute-specification)
-### [Attribute instances](../../../../_csharplang/spec/attributes.md#attribute-instances)
-### [Reserved attributes](../../../../_csharplang/spec/attributes.md#reserved-attributes)
-### [Attributes for Interoperation](../../../../_csharplang/spec/attributes.md#attributes-for-interoperation)
-## [Unsafe code](../../../../_csharplang/spec/unsafe-code.md#unsafe-code)
-### [Unsafe contexts](../../../../_csharplang/spec/unsafe-code.md#unsafe-contexts)
-### [Pointer types](../../../../_csharplang/spec/unsafe-code.md#pointer-types)
-### [Fixed and moveable variables](../../../../_csharplang/spec/unsafe-code.md#fixed-and-moveable-variables)
-### [Pointer conversions](../../../../_csharplang/spec/unsafe-code.md#pointer-conversions)
-### [Pointers in expressions](../../../../_csharplang/spec/unsafe-code.md#pointers-in-expressions)
-### [The fixed statement](../../../../_csharplang/spec/unsafe-code.md#the-fixed-statement)
-### [Fixed size buffers](../../../../_csharplang/spec/unsafe-code.md#fixed-size-buffers)
-### [Stack allocation](../../../../_csharplang/spec/unsafe-code.md#stack-allocation)
-### [Dynamic memory allocation](../../../../_csharplang/spec/unsafe-code.md#dynamic-memory-allocation)
-## [Documentation comments](../../../../_csharplang/spec/documentation-comments.md#documentation-comments)
-### [Introduction](../../../../_csharplang/spec/documentation-comments.md#introduction)
-### [Recommended tags](../../../../_csharplang/spec/documentation-comments.md#recommended-tags)
-### [Processing the documentation file](../../../../_csharplang/spec/documentation-comments.md#processing-the-documentation-file)
-### [An example](../../../../_csharplang/spec/documentation-comments.md#an-example)
+## [Lexical structure](../../../../_csharplang/spec/lexical-structure.md)
+## [Basic concepts](../../../../_csharplang/spec/basic-concepts.md)
+## [Types](../../../../_csharplang/spec/types.md)
+## [Variables](../../../../_csharplang/spec/variables.md)
+## [Conversions](../../../../_csharplang/spec/conversions.md)
+## [Expressions](../../../../_csharplang/spec/expressions.md)
+## [Statements](../../../../_csharplang/spec/statements.md)
+## [Namespaces](../../../../_csharplang/spec/namespaces.md)
+## [Classes](../../../../_csharplang/spec/classes.md)
+## [Structs](../../../../_csharplang/spec/structs.md)
+## [Arrays](../../../../_csharplang/spec/arrays.md)
+## [Interfaces](../../../../_csharplang/spec/interfaces.md)
+## [Enums](../../../../_csharplang/spec/enums.md)
+## [Delegates](../../../../_csharplang/spec/delegates.md)
+## [Exceptions](../../../../_csharplang/spec/exceptions.md)
+## [Attributes](../../../../_csharplang/spec/attributes.md)
+## [Unsafe code](../../../../_csharplang/spec/unsafe-code.md)
+## [Documentation comments](../../../../_csharplang/spec/documentation-comments.md)