[Generator] Do not omit public visibility of methods in wasm

generators/builtins/primitives/BooleanGenerator.kt

@@ -224,12 +224,10 @@ class WasmBooleanGenerator(writer: PrintWriter) : BooleanGenerator(writer) {
     }
 
     override fun MethodBuilder.modifyGeneratedToString() {
-        modifySignature { visibility = null }
         "if (this) \"true\" else \"false\"".setAsExpressionBody()
     }
 
     override fun MethodBuilder.modifyGeneratedEquals() {
-        modifySignature { visibility = null }
         """
             return if (other !is Boolean) {
                 false
@@ -239,10 +237,6 @@ class WasmBooleanGenerator(writer: PrintWriter) : BooleanGenerator(writer) {
         """.trimIndent().setAsBlockBody()
     }
 
-    override fun MethodBuilder.modifyGeneratedHashCode() {
-        modifySignature { visibility = null }
-    }
-
     override fun ClassBuilder.generateAdditionalMethods() {
         method {
             annotations += "WasmNoOpCast"
@@ -307,10 +301,6 @@ class NativeBooleanGenerator(writer: PrintWriter) : BooleanGenerator(writer) {
         }
     }
 
-    override fun MethodBuilder.modifyGeneratedHashCode() {
-        modifySignature { visibility = MethodVisibility.PUBLIC }
-    }
-
     override fun ClassBuilder.generateAdditionalMethods() {
         generateCustomEquals()
     }

generators/builtins/primitives/CharGenerator.kt

@@ -547,7 +547,6 @@ class WasmCharGenerator(writer: PrintWriter) : CharGenerator(writer) {
     }
 
     override fun MethodBuilder.modifyGeneratedToString() {
-        modifySignature { visibility = null }
         """
             val array = WasmCharArray(1)
             array.set(0, this)
@@ -556,7 +555,6 @@ class WasmCharGenerator(writer: PrintWriter) : CharGenerator(writer) {
     }
 
     override fun MethodBuilder.modifyGeneratedHashCode() {
-        modifySignature { visibility = null }
         "this.code.hashCode()".setAsExpressionBody()
     }
 }

generators/builtins/primitives/builders.kt

@@ -265,7 +265,7 @@ internal class SecondaryConstructorBuilder : AnnotatedAndDocumented(), Primitive
 
 internal class MethodSignatureBuilder : PrimitiveBuilder {
     var isExternal: Boolean = false
-    var visibility: MethodVisibility? = MethodVisibility.PUBLIC
+    var visibility: MethodVisibility = MethodVisibility.PUBLIC
     var isOverride: Boolean = false
     var isInline: Boolean = false
     var isInfix: Boolean = false
@@ -293,7 +293,7 @@ internal class MethodSignatureBuilder : PrimitiveBuilder {
         throwIfWasNotInitialized(returnType, "returnType", "MethodSignatureBuilder")
 
         return buildString {
-            visibility?.let { append("${it.name.lowercase()} ") }
+            append("${visibility.name.lowercase()} ")
             if (isExternal) append("external ")
             if (isOverride) append("override ")
             if (isInline) append("inline ")