[no-wasm] Split off runtime-test-wasm.cc

This moves all wasm-related runtime functions from runtime-test.cc to
runtime-test-wasm.cc, which makes it easier to fully exclude them later.

R=ahaas@chromium.org

Bug: v8:11238
Change-Id: I3bc1c175b8db8837097308ed09aab69725dcf5aa
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2739648
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73236}

BUILD.gn

@@ -3854,6 +3854,7 @@ v8_source_set("v8_base_without_compiler") {
     "src/runtime/runtime-scopes.cc",
     "src/runtime/runtime-strings.cc",
     "src/runtime/runtime-symbol.cc",
+    "src/runtime/runtime-test-wasm.cc",
     "src/runtime/runtime-test.cc",
     "src/runtime/runtime-trace.cc",
     "src/runtime/runtime-typedarray.cc",