s390: Reland "Reland "[builtins] Add .incbin cctest""

Port 47e272b2

Original Commit Message:

    This is a reland of ef06fede.

    Original change's description:
    > Reland "[builtins] Add .incbin cctest"
    >
    > This is a reland of b0128161.
    >
    > Original change's description:
    > > [builtins] Add .incbin cctest
    > >
    > > Just to ensure this is portable across all platforms.
    > >
    > > Credits go to https://github.com/graphitemaster/incbin, bits of the
    > > .incbin code were taken from there. Thanks!
    > >
    > > Reland of https://crrev.com/c/881181
    > >
    > > Bug: v8:6666
    > > Change-Id: I5c0dbf56b1c987fd88607dca69b39d65b59cdefc
    > > Reviewed-on: https://chromium-review.googlesource.com/895597
    > > Commit-Queue: Jakob Gruber <jgruber@chromium.org>
    > > Reviewed-by: Michael Achenbach <machenbach@chromium.org>
    > > Cr-Commit-Position: refs/heads/master@{#51042}
    >
    > Cq-Include-Trybots: luci.v8.try:v8_win64_msvc_compile_rel
    > Bug: v8:6666
    > Change-Id: I8fc0963e28996a84ed56c2e740d895e26611abf0
    > Reviewed-on: https://chromium-review.googlesource.com/897630
    > Commit-Queue: Jakob Gruber <jgruber@chromium.org>
    > Reviewed-by: Michael Achenbach <machenbach@chromium.org>
    > Cr-Commit-Position: refs/heads/master@{#51054}

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

Change-Id: I863d01a4a7d91f9f2128e4598f417efe49c43e7b
Reviewed-on: https://chromium-review.googlesource.com/902431Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#51124}

test/cctest/test-isolate-independent-builtins.cc

@@ -232,10 +232,7 @@ TEST(GenerateTestFunctionData) {
 #elif V8_TARGET_ARCH_S390
   Assembler masm(isolate, nullptr, 0);
 
-  __ lhi(r1, Operand(3));
-  __ llilf(r2, Operand(4));
-  __ lgr(r2, r2);
-  __ ar(r2, r1);
+  __ agr(r2, r3);
   __ b(r14);
 #else  // Unknown architecture.
 #error "Unknown architecture."