[FIR] Make default values for value parameters lazy in RawFirBuilder

Sixth step for ^KT-52615

Merge-request: KT-MR-7926
Merged-by: Egor Kulikov <Egor.Kulikov@jetbrains.com>

compiler/fir/raw-fir/psi2fir/testData/rawBuilder/declarations/enums.lazyBodies.txt

@@ -57,7 +57,7 @@ FILE: enums.kt
 
     }
     public? final? enum class PseudoInsn : R|kotlin/Enum<PseudoInsn>| {
-        private constructor(signature: String = String(()V)): R|PseudoInsn| {
+        private constructor(signature: String = LAZY_EXPRESSION): R|PseudoInsn| {
             LAZY_super<R|kotlin/Enum<PseudoInsn>|>
         }