hg: jdk/jdk: 8208604: Metadata::print_value_string() compares 'this' to NULL

[harold.seigel at oracle.com]

Changeset: 82adcc8ad853
Author:    hseigel
Date:      2018-08-06 14:20 -0400
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/82adcc8ad853

8208604: Metadata::print_value_string() compares 'this' to NULL
Summary: Remove the comparison and add asserts to check for NULL
Reviewed-by: coleenp, gziemski

! src/hotspot/share/c1/c1_Runtime1.cpp
! src/hotspot/share/code/compiledIC.cpp
! src/hotspot/share/jvmci/jvmciRuntime.cpp
! src/hotspot/share/oops/metadata.cpp