doc: mark process.report as experimental

Everything under process.report is experimental. This commit
adds the missing stability index entries.

PR-URL: nodejs#28653
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Gireesh Punathil <[email protected]>
Reviewed-By: Jeremiah Senkpiel <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: Tobias Nießen <[email protected]>

doc/api/process.md

@@ -1684,6 +1684,8 @@ relied upon to exist.
 added: v11.8.0
 -->
 
+> Stability: 1 - Experimental
+
 * {Object}
 
 `process.report` is an object whose methods are used to generate diagnostic
@@ -1695,6 +1697,8 @@ reports for the current process. Additional documentation is available in the
 added: v11.12.0
 -->
 
+> Stability: 1 - Experimental
+
 * {string}
 
 Directory where the report is written. The default value is the empty string,
@@ -1710,6 +1714,8 @@ console.log(`Report directory is ${process.report.directory}`);
 added: v11.12.0
 -->
 
+> Stability: 1 - Experimental
+
 * {string}
 
 Filename where the report is written. If set to the empty string, the output
@@ -1725,6 +1731,8 @@ console.log(`Report filename is ${process.report.filename}`);
 added: v11.8.0
 -->
 
+> Stability: 1 - Experimental
+
 * `err` {Error} A custom error used for reporting the JavaScript stack.
 * Returns: {Object}
 
@@ -1748,6 +1756,8 @@ Additional documentation is available in the [report documentation][].
 added: v11.12.0
 -->
 
+> Stability: 1 - Experimental
+
 * {boolean}
 
 If `true`, a diagnostic report is generated on fatal errors, such as out of
@@ -1762,6 +1772,8 @@ console.log(`Report on fatal error: ${process.report.reportOnFatalError}`);
 added: v11.12.0
 -->
 
+> Stability: 1 - Experimental
+
 * {boolean}
 
 If `true`, a diagnostic report is generated when the process receives the
@@ -1776,6 +1788,8 @@ console.log(`Report on signal: ${process.report.reportOnSignal}`);
 added: v11.12.0
 -->
 
+> Stability: 1 - Experimental
+
 * {boolean}
 
 If `true`, a diagnostic report is generated on uncaught exception.
@@ -1789,6 +1803,8 @@ console.log(`Report on exception: ${process.report.reportOnUncaughtException}`);
 added: v11.12.0
 -->
 
+> Stability: 1 - Experimental
+
 * {string}
 
 The signal used to trigger the creation of a diagnostic report. Defaults to
@@ -1803,6 +1819,8 @@ console.log(`Report signal: ${process.report.signal}`);
 added: v11.8.0
 -->
 
+> Stability: 1 - Experimental
+
 * `filename` {string} Name of the file where the report is written. This
   should be a relative path, that will be appended to the directory specified in
   `process.report.directory`, or the current working directory of the Node.js