hg: jdk/sandbox: 8205400: [Graal] compiler/jvmci/compilerToVM/DisassembleCodeBlobTest.java fails with can't be enqueued for compilation on level 4

[chris.hegarty at oracle.com]

Changeset: ca4eea543d23
Author:    kvn
Date:      2018-06-26 09:14 -0700
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/ca4eea543d23

8205400: [Graal] compiler/jvmci/compilerToVM/DisassembleCodeBlobTest.java fails with can't be enqueued for compilation on level 4
Summary: add -XX:-BackgroundCompilation to tests to eager initialize JVMCI
Reviewed-by: thartmann

! src/hotspot/share/prims/whitebox.cpp
! test/hotspot/jtreg/compiler/jvmci/compilerToVM/DisassembleCodeBlobTest.java
! test/hotspot/jtreg/compiler/jvmci/compilerToVM/ExecuteInstalledCodeTest.java