deps: V8: forward declaration of Rtl*FunctionTable

This should be semver-patch since actual invocation is version
conditional.

Backport-PR-URL: #29241
PR-URL: #27375
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

common.gypi

@@ -38,7 +38,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.5',
+    'v8_embedder_string': '-node.6',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/src/diagnostics/unwinding-info-win64.cc

@@ -10,6 +10,37 @@
 #include "src/codegen/x64/assembler-x64.h"
 #include "src/utils/allocation.h"
 
+// Forward declaration to keep this independent of Win8
+NTSYSAPI
+DWORD
+NTAPI
+RtlAddGrowableFunctionTable(
+    _Out_ PVOID* DynamicTable,
+    _In_reads_(MaximumEntryCount) PRUNTIME_FUNCTION FunctionTable,
+    _In_ DWORD EntryCount,
+    _In_ DWORD MaximumEntryCount,
+    _In_ ULONG_PTR RangeBase,
+    _In_ ULONG_PTR RangeEnd
+    );
+
+
+NTSYSAPI
+void
+NTAPI
+RtlGrowFunctionTable(
+    _Inout_ PVOID DynamicTable,
+    _In_ DWORD NewEntryCount
+    );
+
+
+NTSYSAPI
+void
+NTAPI
+RtlDeleteGrowableFunctionTable(
+    _In_ PVOID DynamicTable
+    );
+
+
 namespace v8 {
 namespace internal {
 namespace win64_unwindinfo {