[BOLT][TEST] Limit iterations in X86/exceptions-pic.test

[Amir]

Summary

The test has 3 invocations with 1M iterations each, which adds delay to fast
check-bolt testing. Reduce the number to 1K.

bolt/test/runtime/X86/Inputs/exception4.cpp

 }
 
 void never_throws() throw () {
   printf("this statement is cold and should be outlined\n");
 }
 
 int main(int argc, char **argv)
 {
-  for(unsigned i = 0; i < 1000000; ++i) {
+  for (unsigned i = 0; i < 1000; ++i) {
     try {
       if (argc == 2) {
         never_throws(); // should be cold
       }
       try {
         if (argc == 2) {
           never_throws(); // should be cold
         }

bolt/test/runtime/X86/exceptions-pic.test

 # Verify that C++ exceptions work after binary re-writing
 
 REQUIRES: x86_64-linux
 
 RUN: %clangxx -fpic -Wl,-q %S/Inputs/exception4.cpp -o %t.pic
-RUN: llvm-bolt %t.pic -o %t && %t 2>&1 | FileCheck %s
-RUN: llvm-bolt --relocs --use-old-text %t.pic -o %t && %t 2>&1 | FileCheck %s
-RUN: llvm-bolt %t.pic -o %t --split-functions --split-strategy=all --split-eh && \
-RUN:     %t 2>&1 | FileCheck %s
+
+RUN: llvm-bolt %t.pic -o %t
+RUN: %t 2>&1 | FileCheck %s
+
+RUN: llvm-bolt --relocs --use-old-text %t.pic -o %t
+RUN: %t 2>&1 | FileCheck %s
+
+RUN: llvm-bolt %t.pic -o %t --split-functions --split-strategy=all --split-eh
+RUN: %t 2>&1 | FileCheck %s
 
 CHECK: catch 2
 CHECK-NEXT: catch 1
 CHECK-NEXT: caught ExcC