Generate separate methods for inline and noinline uses of inline suspend functions

Previously, inline suspend functions were effectively inline only,
but ordinary inline functions can be used as noinline.
To fix the issue, I generate two functions: one for inline with suffix
$$forInline and without state machine; and the other one without any
suffix and state machine for direct calls.
This change does not affect effectively inline only suspend functions,
i.e. functions with reified generics, annotated with @InlineOnly
annotation and functions with crossinline parameters.
 #KT-20219: Fixed

compiler/testData/codegen/bytecodeListing/inline/simpleNamed.kt

@@ -0,0 +1,39 @@
+// WITH_RUNTIME
+
+suspend inline fun simple() {}
+
+suspend inline fun <T> generic() {}
+
+suspend inline fun <T, reified U> genericWithReified() {}
+
+suspend inline fun Unit.simple() {}
+
+suspend inline fun <T> T.generic() {}
+
+suspend inline fun <T, reified U> T.genericWithReified() {}
+
+@Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
+@kotlin.internal.InlineOnly
+suspend inline fun shouldNotHaveSuffix() {}
+
+suspend inline fun acceptsCrossinline(crossinline c: () -> Unit) {}
+
+class Foo {
+    suspend inline fun simple() {}
+
+    suspend inline fun <T> generic() {}
+
+    suspend inline fun <T, reified U> genericWithReified() {}
+
+    suspend inline fun Unit.simple() {}
+
+    suspend inline fun <T> T.generic() {}
+
+    suspend inline fun <T, reified U> T.genericWithReified() {}
+
+    @Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
+    @kotlin.internal.InlineOnly
+    suspend inline fun shouldNotHaveSuffix() {}
+
+    suspend inline fun acceptsCrossinline(crossinline c: () -> Unit) {}
+}