When preparing heap for breakpoints make sure not to recompile inlined functions.

test/mjsunit/regress/regress-debug-code-recompilation.js

+// Copyright 2012 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
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+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
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+//       contributors may be used to endorse or promote products derived
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+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --allow-natives-syntax --hydrogen-filter=Debug.setBreakPoint --expose-debug-as debug
+
+Debug = debug.Debug
+
+function f() {a=1;b=2};
+function g() {
+  a=1;
+  b=2;
+}

[Erik Corry, 2012/01/25 14:05:28]

The test does not seem to test having anything on the stack when breakpoints are
activated.

+
+bp = Debug.setBreakPoint(f, 0, 0);
+Debug.clearBreakPoint(bp);
+%OptimizeFunctionOnNextCall(Debug.setBreakPoint);
+bp = Debug.setBreakPoint(f, 0, 0);
+Debug.clearBreakPoint(bp);
+bp = Debug.setBreakPoint(f, 0, 0);
+Debug.clearBreakPoint(bp);
+%OptimizeFunctionOnNextCall(Debug.setBreakPoint);
+bp = Debug.setBreakPoint(f, 0, 0);
+Debug.clearBreakPoint(bp);