override val BOOLEAN: KtType
        get() = withValidityAssertion { analysisContext.builtIns.booleanType.toKtType(analysisContext) }

    override val CHAR: KtType
        get() = withValidityAssertion { analysisContext.builtIns.charType.toKtType(analysisContext) }

    override val STRING: KtType

    override val FLOAT: KtType by cachedBuiltin(builtinTypes.floatType)
    override val DOUBLE: KtType by cachedBuiltin(builtinTypes.doubleType)

    override val CHAR: KtType by cachedBuiltin(builtinTypes.charType)
    override val BOOLEAN: KtType by cachedBuiltin(builtinTypes.booleanType)
    override val STRING: KtType by cachedBuiltin(builtinTypes.stringType)

    }

    private fun String.sanitizeName(): String =
        lowercase()
            .split('_')
            .joinToString(separator = "") {
                it.replaceFirstChar(Char::uppercaseChar)
            }

}

internal object FirToKtConversionCreator {
    fun createConversion(type: KType): HLParameterConversion {
        val nullable = type.isMarkedNullable

            // In most cases, we can get the callee name from the callee's candidate symbols. However, there is at least one case where we
            // cannot do so:
            // ```
            // fun x(c: Char) {}
            // fun call(x: kotlin.Int) {
            //   operator fun Int.invoke(a: Int) {}
            //   operator fun Int.invoke(b: Boolean) {}
            //   <expr>x()</expr>
            // }

- [`KT-59718`](https://youtrack.jetbrains.com/issue/KT-59718) K/JS: Concatenating a String with a Char can lead to boxing of the Char
- [`KT-59717`](https://youtrack.jetbrains.com/issue/KT-59717) K/JS: a redundant boxing of a returned Char from an inline function

        JsBuiltinNameClashImpl(
            firDiagnostic.a,
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirJsErrors.NAME_CONTAINS_ILLEGAL_CHARS) { firDiagnostic ->
        NameContainsIllegalCharsImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirJsErrors.JS_NAME_CLASH) { firDiagnostic ->