Fix build on Solaris and musl-based platforms

src/base/debug/stack_trace.cc

Index: src/base/debug/stack_trace.cc
diff --git a/src/base/debug/stack_trace.cc b/src/base/debug/stack_trace.cc
index 0a7a3f9ab99f9fa5e6fb26313920e74a386cba44..bcd66b0b18a489ef5ad5e94b461d1474a720c531 100644
--- a/src/base/debug/stack_trace.cc
+++ b/src/base/debug/stack_trace.cc
@@ -31,7 +31,9 @@ const void* const* StackTrace::Addresses(size_t* count) const {
 
 std::string StackTrace::ToString() const {
   std::stringstream stream;
+#if V8_LIBC_GLIBC || V8_OS_BSD || V8_OS_SOLARIS

[rmcilroy, 2016/09/07 11:06:22]

This will avoid printing on windows also which is wrong. The corresponding
change in Chromium is "#if !defined(__UCLIBC__)". Do you even need this though
(the CL mentions Solaris, and this change allows suggests Solaris can call
OutputToStream anyway.

[targos, 2016/09/12 07:34:53]

Would adding "|| V8_OS_WIN" be enough for Windows ?

   OutputToStream(&stream);
+#endif
   return stream.str();
 }