[GR-17457] Ensure the host inlining test is run when it should

PullRequest: truffleruby/3919

Author: eregon

ci.jsonnet

@@ -212,6 +212,9 @@ local part_definitions = {
         "--extra-image-builder-argument=rubyvm:-H:+TruffleHostInliningPrintExplored",
         "--extra-image-builder-argument=rubyvm:-Dgraal.LogFile=host-inlining.txt",
       ],
+      environment+: {
+        TRUFFLERUBY_HOST_INLINING_TEST: "1",
+      },
     },
   },
 

src/main/java/org/truffleruby/language/arguments/RubyArguments.java

@@ -386,7 +386,7 @@ public static MaterializedFrame getDeclarationFrame(MaterializedFrame frame, int
         assert level >= 0;
 
         CompilerAsserts.partialEvaluationConstant(level);
-        return level <= RubyBaseNode.MAX_EXPLODE_SIZE
+        return (CompilerDirectives.inCompiledCode() && level <= RubyBaseNode.MAX_EXPLODE_SIZE)
                 ? getDeclarationFrameExplode(frame, level)
                 : getDeclarationFrameLoop(frame, level);
     }

test/truffle/compiler/host-inlining.sh

@@ -4,7 +4,7 @@ source test/truffle/common.sh.inc
 
 file=${1:-host-inlining.txt}
 
-if [ -f "$file" ]; then
+if [ -n "$TRUFFLERUBY_HOST_INLINING_TEST" ]; then
   # shellcheck disable=SC2016
   ruby tool/extract_host_inlining.rb 'org.truffleruby.language.methods.CallForeignMethodNodeGen.execute' "$file" > out.txt
   # shellcheck disable=SC2016