FIR: leave 'isSuspend' in functional & resolved type references only

compiler/fir/tree/tree-generator/src/org/jetbrains/kotlin/fir/tree/generator/ImplementationConfigurator.kt

@@ -399,23 +399,12 @@ object ImplementationConfigurator : AbstractFirTreeImplementationConfigurator()
             useTypes(errorTypeRefImpl)
         }
 
-        impl(dynamicTypeRef) {
-            defaultFalse("isSuspend")
-        }
-
-        impl(functionTypeRef) {
-            // Note that we intentionally do _not_ set default value (false) for `isSuspend`, since function type reference is the only
-            // place where type modifier `suspend` matters.
-        }
-
+        impl(functionTypeRef)
         impl(implicitTypeRef) {
             defaultEmptyList("annotations")
-            defaultFalse("isSuspend")
         }
 
-        impl(composedSuperTypeRef) {
-            defaultFalse("isSuspend")
-        }
+        impl(composedSuperTypeRef)
 
         impl(reference, "FirStubReference") {
             default("source") {
@@ -466,7 +455,6 @@ object ImplementationConfigurator : AbstractFirTreeImplementationConfigurator()
                     delegate = "typeRef"
                 }
             }
-            defaultFalse("isSuspend")
         }
 
         noImpl(userTypeRef)

compiler/fir/tree/tree-generator/src/org/jetbrains/kotlin/fir/tree/generator/NodeConfigurator.kt

@@ -530,12 +530,12 @@ object NodeConfigurator : AbstractFieldConfigurator<FirTreeBuilder>(FirTreeBuild
 
         typeRef.configure {
             +annotations
-            +booleanField("isSuspend")
         }
 
         resolvedTypeRef.configure {
             +field("type", coneKotlinTypeType)
             +field("delegatedTypeRef", typeRef, nullable = true)
+            +booleanField("isSuspend")
         }
 
         delegatedTypeRef.configure {
@@ -555,6 +555,7 @@ object NodeConfigurator : AbstractFieldConfigurator<FirTreeBuilder>(FirTreeBuild
             +field("receiverTypeRef", typeRef, nullable = true)
             +valueParameters
             +returnTypeRef
+            +booleanField("isSuspend")
         }
 
         composedSuperTypeRef.configure {