JVM IR: do not lower trimIndent/trimMargin if API version is too high

We cannot be sure that we won't change behavior of these functions in
some corner cases, so only perform this optimization if the API version
specified by the user is not greater than the compiler's own stdlib
version it was compiled against. This is the same as the similar code in
the old backend in IntrinsicMethods.

compiler/backend/src/org/jetbrains/kotlin/codegen/state/GenerationState.kt

@@ -210,10 +210,10 @@ class GenerationState private constructor(
         target,
         isIrBackend
     )
+    val canReplaceStdlibRuntimeApiBehavior = languageVersionSettings.apiVersion <= ApiVersion.parse(KotlinVersion.CURRENT.toString())!!
     val intrinsics: IntrinsicMethods = run {
         val shouldUseConsistentEquals = languageVersionSettings.supportsFeature(LanguageFeature.ThrowNpeOnExplicitEqualsForBoxedNull) &&
                 !configuration.getBoolean(JVMConfigurationKeys.NO_EXCEPTION_ON_EXPLICIT_EQUALS_FOR_BOXED_NULL)
-        val canReplaceStdlibRuntimeApiBehavior = languageVersionSettings.apiVersion <= ApiVersion.parse(KotlinVersion.CURRENT.toString())!!
         IntrinsicMethods(target, canReplaceStdlibRuntimeApiBehavior, shouldUseConsistentEquals)
     }
     val samWrapperClasses: SamWrapperClasses = SamWrapperClasses(this)

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/StringTrimLowering.kt

@@ -8,7 +8,6 @@ package org.jetbrains.kotlin.backend.common.lower
 import org.jetbrains.kotlin.backend.common.CommonBackendContext
 import org.jetbrains.kotlin.backend.common.FileLoweringPass
 import org.jetbrains.kotlin.backend.common.lower.matchers.SimpleCalleeMatcher
-import org.jetbrains.kotlin.backend.common.phaser.makeIrFilePhase
 import org.jetbrains.kotlin.ir.declarations.IrFile
 import org.jetbrains.kotlin.ir.expressions.IrCall
 import org.jetbrains.kotlin.ir.expressions.IrConst
@@ -20,12 +19,6 @@ import org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid
 import org.jetbrains.kotlin.ir.visitors.transformChildrenVoid
 import org.jetbrains.kotlin.name.FqName
 
-val computeStringTrimPhase = makeIrFilePhase(
-    ::StringTrimLowering,
-    name = "StringTrimLowering",
-    description = "Compute trimIndent and trimMargin operations on constant strings"
-)
-
 class StringTrimLowering(val context: CommonBackendContext) : FileLoweringPass, IrElementTransformerVoid() {
     override fun lower(irFile: IrFile) {
         irFile.transformChildrenVoid(this)

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmLower.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.backend.jvm
 
 import org.jetbrains.kotlin.backend.common.CommonBackendContext
+import org.jetbrains.kotlin.backend.common.FileLoweringPass
 import org.jetbrains.kotlin.backend.common.lower.*
 import org.jetbrains.kotlin.backend.common.lower.loops.forLoopsPhase
 import org.jetbrains.kotlin.backend.common.phaser.*
@@ -139,6 +140,17 @@ private val jvmLocalClassExtractionPhase = makeIrFilePhase(
     description = "Move local classes from field initializers and anonymous init blocks into the containing class"
 )
 
+private val computeStringTrimPhase = makeIrFilePhase<JvmBackendContext>(
+    { context ->
+        if (context.state.canReplaceStdlibRuntimeApiBehavior)
+            StringTrimLowering(context)
+        else
+            FileLoweringPass.Empty
+    },
+    name = "StringTrimLowering",
+    description = "Compute trimIndent and trimMargin operations on constant strings"
+)
+
 private val defaultArgumentStubPhase = makeIrFilePhase(
     ::JvmDefaultArgumentStubGenerator,
     name = "DefaultArgumentsStubGenerator",