Kapt: Allow passing primitive types and void to erasure() (KT-13617)

(cherry picked from commit 91444c5)

plugins/annotation-processing/src/org/jetbrains/kotlin/annotation/processing/impl/KotlinTypes.kt

@@ -102,9 +102,11 @@ class KotlinTypes(val javaPsiFacade: JavaPsiFacade, val psiManager: PsiManager,
     override fun getPrimitiveType(kind: TypeKind) = kind.toJePrimitiveType()
 
     override fun erasure(t: TypeMirror): TypeMirror {
-        if (t is NoType) throw IllegalArgumentException("Invalid type: $t")
-        t as? JePsiType ?: return t
-        return TypeConversionUtil.erasure(t.psiType).toJeType(psiManager)
+        if (t.kind == TypeKind.PACKAGE) throw IllegalArgumentException("Invalid type: $t")
+        return when (t) {
+            is JePsiType -> TypeConversionUtil.erasure(t.psiType).toJeType(psiManager)
+            else -> t
+        }
     }
 
     override fun directSupertypes(t: TypeMirror): List<TypeMirror> {

plugins/annotation-processing/testData/processors/ErasureSimple.kt

@@ -0,0 +1,5 @@
+@Deprecated("")
+class Test {
+    fun a(): Int = 5
+    fun b(): Unit {}
+}

plugins/plugins-tests/tests/org/jetbrains/kotlin/annotation/processing/test/processor/ProcessorTests.kt

@@ -153,4 +153,12 @@ class ProcessorTests : AbstractProcessorTest() {
         val typeArg = cai.typeArguments.first()
         assertTrue(typeArg is TypeVariable)
     }
+    
+    fun testErasureSimple() = test("ErasureSimple", "*") { set, roundEnv, env -> 
+        val test = env.findClass("Test")
+        val int = test.findMethod("a").returnType
+        val void = test.findMethod("b").returnType
+        assertEquals(int, env.typeUtils.erasure(int))
+        assertEquals(void, env.typeUtils.erasure(void))
+    }
 }