8226302: Test failures on IBM platforms (power and s/390) after JDK-8223837
Summary: Adjust heap size values for 32M heap aligment (page size 64k)
Reviewed-by: goetz, rschmelter, tschatzl
8221514: [Graal] java/lang/String/CompactString/ tests fail with "GraalError: failed guarantee: no FrameState at DeoptimizingNode" in Graal -Xcomp mode
Summary: Put FrameState directly on final StateSplit in intrinsics.
Reviewed-by: thartmann, kvn, dnsimon, gdub