JVM_IR: Generate inline functions with reified generics as public synthetic

Otherwise, proguard will remove them.
 #KT-37004 Fixed

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/FunctionCodegen.kt

@@ -174,7 +174,8 @@ open class FunctionCodegen(
         val nativeFlag = if (irFunction.isExternal) Opcodes.ACC_NATIVE else 0
         val syntheticFlag =
             if (irFunction.origin.isSynthetic || irFunction.hasAnnotation(JVM_SYNTHETIC_ANNOTATION_FQ_NAME) ||
-                    (irFunction.isSuspend && irFunction.visibility == Visibilities.PRIVATE && !irFunction.isInline)
+                    (irFunction.isSuspend && irFunction.visibility == Visibilities.PRIVATE && !irFunction.isInline) ||
+                    irFunction.isReifiable()
             ) Opcodes.ACC_SYNTHETIC
             else 0
         val strictFpFlag = if (irFunction.hasAnnotation(STRICTFP_ANNOTATION_FQ_NAME)) Opcodes.ACC_STRICT else 0

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/irCodegenUtils.kt

@@ -181,6 +181,10 @@ private fun IrDeclarationWithVisibility.specialCaseVisibility(kind: OwnerKind?):
     }
 
 //    if (memberDescriptor.isEffectivelyInlineOnly()) {
+    if (this is IrFunction && isReifiable()) {
+        return Opcodes.ACC_PUBLIC
+    }
+
     if (isEffectivelyInlineOnly()) {
         return Opcodes.ACC_PRIVATE
     }
@@ -290,7 +294,7 @@ private fun IrDeclarationWithVisibility.isPrivateInlineSuspend(): Boolean =
 fun IrFunction.isInlineOnly() =
     isInline && hasAnnotation(INLINE_ONLY_ANNOTATION_FQ_NAME)
 
-private fun IrFunction.isReifiable() = typeParameters.any { it.isReified }
+fun IrFunction.isReifiable() = typeParameters.any { it.isReified }
 
 // Borrowed with modifications from ImplementationBodyCodegen.java
 

compiler/testData/codegen/bytecodeListing/inline/simpleNamed_ir.txt

@@ -7,8 +7,8 @@ public final class Foo {
     private final method generic$$forInline(p0: kotlin.coroutines.Continuation): java.lang.Object
     public final @org.jetbrains.annotations.Nullable method generic(@org.jetbrains.annotations.NotNull p0: kotlin.coroutines.Continuation): java.lang.Object
     public final @org.jetbrains.annotations.Nullable method generic(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
-    private final @org.jetbrains.annotations.Nullable method genericWithReified(@org.jetbrains.annotations.NotNull p0: kotlin.coroutines.Continuation): java.lang.Object
+    public synthetic final @org.jetbrains.annotations.Nullable method genericWithReified(@org.jetbrains.annotations.NotNull p0: kotlin.coroutines.Continuation): java.lang.Object
-    private final @org.jetbrains.annotations.Nullable method genericWithReified(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
+    public synthetic final @org.jetbrains.annotations.Nullable method genericWithReified(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
     private final method privateInline(p0: kotlin.coroutines.Continuation): java.lang.Object
     private final @kotlin.internal.InlineOnly @org.jetbrains.annotations.Nullable method shouldNotHaveSuffix(@org.jetbrains.annotations.NotNull p0: kotlin.coroutines.Continuation): java.lang.Object
     private final method simple$$forInline(p0: kotlin.Unit, p1: kotlin.coroutines.Continuation): java.lang.Object
@@ -25,8 +25,8 @@ public final class SimpleNamedKt {
     private final static method generic$$forInline(p0: kotlin.coroutines.Continuation): java.lang.Object
     public final static @org.jetbrains.annotations.Nullable method generic(@org.jetbrains.annotations.NotNull p0: kotlin.coroutines.Continuation): java.lang.Object
     public final static @org.jetbrains.annotations.Nullable method generic(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
-    private final static @org.jetbrains.annotations.Nullable method genericWithReified(@org.jetbrains.annotations.NotNull p0: kotlin.coroutines.Continuation): java.lang.Object
+    public synthetic final static @org.jetbrains.annotations.Nullable method genericWithReified(@org.jetbrains.annotations.NotNull p0: kotlin.coroutines.Continuation): java.lang.Object
-    private final static @org.jetbrains.annotations.Nullable method genericWithReified(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
+    public synthetic final static @org.jetbrains.annotations.Nullable method genericWithReified(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
     private final static method privateInline(p0: kotlin.coroutines.Continuation): java.lang.Object
     private final static @kotlin.internal.InlineOnly @org.jetbrains.annotations.Nullable method shouldNotHaveSuffix(@org.jetbrains.annotations.NotNull p0: kotlin.coroutines.Continuation): java.lang.Object
     private final static method simple$$forInline(p0: kotlin.Unit, p1: kotlin.coroutines.Continuation): java.lang.Object