export interface CSharpPreprocNormalizationDiagnostics {
    directivesSeen: number;
    inactiveLines: number;
    undefinedSymbols: string[];
    expressionErrors: number;
    unmatchedEndif: number;
    unterminatedIfBlocks: number;
}
export interface CSharpPreprocNormalizationResult {
    normalizedText: string;
    changed: boolean;
    diagnostics: CSharpPreprocNormalizationDiagnostics;
}
export declare function normalizeCSharpPreprocessorBranches(source: string, defines: Set<string>): CSharpPreprocNormalizationResult;