PPC/s390: Reland "[wasm][debug] Fix tier down during streaming compilation"

Port 18ac08d0

Original Commit Message:

    This is a reland of 3cc981cb with a
    fix for data race detected by TSan.

    Original change's description:
    > [wasm][debug] Fix tier down during streaming compilation
    >
    > If the debugger is enabled while streaming compilation is happening, we
    > won't correctly tier down to Liftoff. This is because during streaming
    > compilation, we always compile for no debugging. Fixing that is a bit
    > tricky, since when the debugger is enabled, functions can either already
    > have finished compiling, or they are currently being compiled, or their
    > wire bytes are not received yet.
    > Instead of handling this correctly while streaming compilation is
    > running, we just recompile the whole module with Liftoff after streaming
    > compilation finished.
    >
    > For testing this, we use the existing tests for async compilation, and
    > enable --wasm-test-streaming, which compiles via the streaming decoder
    > even in the async compilation case.
    >
    > R=thibaudm@chromium.org
    >
    > Bug: v8:10531
    > Change-Id: I0177248a9ad2e90f83faee965d6746de05423f1f
    > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2207133
    > Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
    > Commit-Queue: Clemens Backes <clemensb@chromium.org>
    > Cr-Commit-Position: refs/heads/master@{#67882}

R=clemensb@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: I778a10eaba0016a9e897c8f71ac822c6b421350f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2208901
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67906}

test/debugger/debugger.status

@@ -146,10 +146,7 @@
 ['arch in (s390, s390x, ppc, ppc64)', {
   'regress/regress-crbug-1032042': [SKIP],
   'regress/regress-crbug-840288': [SKIP],
-  'debug/wasm/asm-debug': [SKIP],
-  'debug/wasm/debug-enabled-tier-down-wasm': [SKIP],
-  'debug/wasm/debug-step-into-wasm': [SKIP],
-  'debug/wasm/frame-inspection': [SKIP],
+  'debug/wasm/*': [SKIP],
 }],
 
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