Don't generate source mapping on inlining 'InlineOnly' functions

compiler/backend/src/org/jetbrains/kotlin/codegen/inline/InlineCodegen.java

@@ -38,6 +38,7 @@ import org.jetbrains.kotlin.renderer.DescriptorRenderer;
 import org.jetbrains.kotlin.resolve.BindingContext;
 import org.jetbrains.kotlin.resolve.DescriptorToSourceUtils;
 import org.jetbrains.kotlin.resolve.DescriptorUtils;
+import org.jetbrains.kotlin.resolve.annotations.AnnotationUtilKt;
 import org.jetbrains.kotlin.resolve.calls.callUtil.CallUtilKt;
 import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall;
 import org.jetbrains.kotlin.resolve.inline.InlineUtil;
@@ -276,7 +277,8 @@ public class InlineCodegen extends CallGenerator {
 
         InliningContext info = new RootInliningContext(
                 expressionMap, state, codegen.getInlineNameGenerator().subGenerator(jvmSignature.getAsmMethod().getName()),
-                codegen.getContext(), callElement, getInlineCallSiteInfo(), reifiedTypeInliner, typeParameterMappings, isDefaultCompilation
+                codegen.getContext(), callElement, getInlineCallSiteInfo(), reifiedTypeInliner, typeParameterMappings, isDefaultCompilation,
+                AnnotationUtilKt.hasInlineOnlyAnnotation(functionDescriptor)
         );
 
         MethodInliner inliner = new MethodInliner(node, parameters, info, new FieldRemapper(null, null, parameters), isSameModule,

compiler/backend/src/org/jetbrains/kotlin/codegen/inline/MethodInliner.java

@@ -71,6 +71,8 @@ public class MethodInliner {
 
     private int lambdasFinallyBlocks;
 
+    private final boolean skipSmap;
+
     /*
      *
      * @param node
@@ -98,6 +100,7 @@ public class MethodInliner {
         this.inlineCallSiteInfo = inlineCallSiteInfo;
         this.typeMapper = inliningContext.state.getTypeMapper();
         this.result = InlineResult.create();
+        skipSmap = inliningContext instanceof RootInliningContext && ((RootInliningContext) inliningContext).skipSmap;
     }
 
     public InlineResult doInline(
@@ -339,6 +342,8 @@ public class MethodInliner {
         node.instructions.resetLabels();
         MethodNode transformedNode = new MethodNode(InlineCodegenUtil.API, node.access, node.name, Type.getMethodDescriptor(returnType, allTypes), node.signature, null) {
 
+            private final boolean GENERATE_DEBUG_INFO = InlineCodegenUtil.GENERATE_SMAP && !skipSmap;
+
             private final boolean isInliningLambda = nodeRemapper.isInsideInliningLambda();
 
             private int getNewIndex(int var) {
@@ -362,7 +367,7 @@ public class MethodInliner {
 
             @Override
             public void visitLineNumber(int line, @NotNull Label start) {
-                if(isInliningLambda || InlineCodegenUtil.GENERATE_SMAP) {
+                if(isInliningLambda || GENERATE_DEBUG_INFO) {
                     super.visitLineNumber(line, start);
                 }
             }
@@ -371,7 +376,7 @@ public class MethodInliner {
             public void visitLocalVariable(
                     @NotNull String name, @NotNull String desc, String signature, @NotNull Label start, @NotNull Label end, int index
             ) {
-                if (isInliningLambda || InlineCodegenUtil.GENERATE_SMAP) {
+                if (isInliningLambda || GENERATE_DEBUG_INFO) {
                     String varSuffix = inliningContext.isRoot() &&
                                        !isDefaultCompilation() &&
                                        !InlineCodegenUtil.isFakeLocalVariableForInline(name) ?

compiler/backend/src/org/jetbrains/kotlin/codegen/inline/RootInliningContext.java

@@ -29,6 +29,7 @@ public class RootInliningContext extends InliningContext {
     private final InlineCallSiteInfo inlineCallSiteInfo;
     public final TypeParameterMappings typeParameterMappings;
     public final boolean isDefaultCompilation;
+    public final boolean skipSmap;
     public final KtElement callElement;
 
     public RootInliningContext(
@@ -40,7 +41,8 @@ public class RootInliningContext extends InliningContext {
             @NotNull InlineCallSiteInfo classNameToInline,
             @NotNull ReifiedTypeInliner inliner,
             @Nullable TypeParameterMappings typeParameterMappings,
-            boolean isDefaultCompilation
+            boolean isDefaultCompilation,
+            boolean skipSmap
     ) {
         super(null, map, state, nameGenerator, TypeRemapper.createRoot(typeParameterMappings), inliner, false, false);
         this.callElement = callElement;
@@ -48,6 +50,7 @@ public class RootInliningContext extends InliningContext {
         this.inlineCallSiteInfo = classNameToInline;
         this.typeParameterMappings = typeParameterMappings;
         this.isDefaultCompilation = isDefaultCompilation;
+        this.skipSmap = skipSmap;
     }
 
     @Override