8325647: [IR framework] Only prints stdout if exitCode is 134

Backport-of: 3b271981662df2a7fdf04ffd75d017964425607c

Author: GoeLin

test/hotspot/jtreg/compiler/lib/ir_framework/driver/TestVMProcess.java

@@ -244,7 +244,9 @@ private String getExceptionInfo() {
         int exitCode = oa.getExitValue();
         String stdErr = oa.getStderr();
         String stdOut = "";
-        if (exitCode == 134) {
+        boolean osIsWindows = Platform.isWindows();
+        boolean JVMHadError = (!osIsWindows && exitCode == 134) || (osIsWindows && exitCode == -1);
+        if (JVMHadError) {
             // Also dump the stdout if we experience a JVM error (e.g. to show hit assertions etc.).
             stdOut = System.lineSeparator() + System.lineSeparator() + "Standard Output" + System.lineSeparator()
                      + "---------------" + System.lineSeparator() + oa.getOutput();