Refactor snapshots pieces to include a section for loading instructions into the heap of a regular …

runtime/bin/extensions_fuchsia.cc

Index: runtime/bin/extensions_fuchsia.cc
diff --git a/runtime/bin/extensions_fuchsia.cc b/runtime/bin/extensions_fuchsia.cc
index 691cac38dd3308721ac82afdd223b0f16d93276e..b464fe0fab510dba6c3f4fac8d3b3bc261b5a374 100644
--- a/runtime/bin/extensions_fuchsia.cc
+++ b/runtime/bin/extensions_fuchsia.cc
@@ -11,10 +11,11 @@
 namespace dart {
 namespace bin {
 
-const char* kPrecompiledVMIsolateSymbolName = "_kVmIsolateSnapshot";
-const char* kPrecompiledIsolateSymbolName = "_kIsolateSnapshot";
-const char* kPrecompiledInstructionsSymbolName = "_kInstructionsSnapshot";
-const char* kPrecompiledDataSymbolName = "_kDataSnapshot";
+const char* kVmSnapshotDataSymbolName = "_kDartVmSnapshotData";
+const char* kVmSnapshotInstructionsSymbolName = "_kDartVmSnapshotInstructions";
+const char* kIsolateSnapshotDataSymbolName = "_kDartIsolateSnapshotData";
+const char* kIsolateSnapshotInstructionsSymbolName =
+    "_kDartIsolateSnapshotInstructions";
 
 void* Extensions::LoadExtensionLibrary(const char* library_file) {
   return dlopen(library_file, RTLD_LAZY);