Handle OOM failures correctly in the CEntryStub when embedders set V8::IgnoreOutOfMemoryException()

src/ia32/code-stubs-ia32.cc

Index: src/ia32/code-stubs-ia32.cc
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index 8d28c9c3ec15c00ae404dbef121298493404a7ba..05dceb7e2818d6b18efe895b9cd0fb9e0db601b2 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -5065,8 +5065,13 @@ void CEntryStub::GenerateCore(MacroAssembler* masm,
   // Special handling of out of memory exceptions.
   JumpIfOOM(masm, eax, ecx, throw_out_of_memory_exception);
 
-  // Retrieve the pending exception and clear the variable.
+  // Retrieve the pending exception.
   __ mov(eax, Operand::StaticVariable(pending_exception_address));
+
+  // See if we just retrieved an OOM exception.
+  JumpIfOOM(masm, eax, ecx, throw_out_of_memory_exception);
+
+  // Clear the pending exception.
   __ mov(edx, Immediate(masm->isolate()->factory()->the_hole_value()));
   __ mov(Operand::StaticVariable(pending_exception_address), edx);