[JVM] Reduce number of param slots for string concatenation

With paramSlot = 200 those tests fails on JDKs which are newer than JDK 9
- testConcatDynamic200Long
- testConcatDynamicIndy200Long()

compiler/testData/codegen/bytecodeText/stringOperations/concatDynamic199.kt

@@ -0,0 +1,21 @@
+// KOTLIN_CONFIGURATION_FLAGS: STRING_CONCAT=indy-with-constants
+// JVM_TARGET: 9
+
+fun box() {
+    val z = "0"
+    val result = z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z +
+            z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z +
+            z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z +
+            z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z +
+            z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z +
+            "some constant" + "some constant" + "some constant" + "some constant" +     // constant in this mode are inlined in recipe
+            z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z +
+            z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z +
+            z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z +
+            z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z +
+            z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z   //199
+}
+
+// 1 INVOKEDYNAMIC makeConcatWithConstants
+// 0 append
+// 0 stringPlus

compiler/testData/codegen/bytecodeText/stringOperations/concatDynamic200.kt

@@ -16,6 +16,6 @@ fun box() {
             z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z + z   //200
 }
 
-// 1 INVOKEDYNAMIC makeConcatWithConstants
+// 2 INVOKEDYNAMIC makeConcatWithConstants
 // 0 append
-// 0 stringPlus
+// 0 stringPlus