[Polly] Fix typo. NFC

[Meinersbur]

Oops, embarrassing type by me. Thanks a lot.

LGTM, going to commit...

lib/Analysis/ScopBuilder.cpp

 // Multiplicative reductions can be disabled separately as these kind of
 // operations can overflow easily. Additive reductions and bit operations
 // are in contrast pretty stable.
 static cl::opt<bool> DisableMultiplicativeReductions(
     "polly-disable-multiplicative-reductions",
     cl::desc("Disable multiplicative reductions"), cl::Hidden, cl::ZeroOrMore,
     cl::init(false), cl::cat(PollyCategory));
 
-enum class GranularityChoice { BasicBlocks, ScalarIndepependence };
+enum class GranularityChoice { BasicBlocks, ScalarIndependence };
 
 static cl::opt<GranularityChoice> StmtGranularity(
     "polly-stmt-granularity",
     cl::desc(
         "Algorithm to use for splitting basic blocks into multiple statements"),
     cl::values(clEnumValN(GranularityChoice::BasicBlocks, "bb",
                           "One statement per basic block"),
-               clEnumValN(GranularityChoice::ScalarIndepependence,
+               clEnumValN(GranularityChoice::ScalarIndependence,
                           "scalar-indep", "Scalar independence heuristic")),
     cl::init(GranularityChoice::BasicBlocks), cl::cat(PollyCategory));
 
 void ScopBuilder::buildPHIAccesses(ScopStmt *PHIStmt, PHINode *PHI,
                                    Region *NonAffineSubRegion,
                                    bool IsExitBlock) {
   // PHI nodes that are in the exit block of the region, hence if IsExitBlock is
   // true, are not modeled as ordinary PHI nodes as they are not part of the
for (auto I = SR.element_begin(), E = SR.element_end(); I != E; ++I)
     if (I->isSubRegion())
       buildStmts(*I->getNodeAs<Region>());
     else {
       BasicBlock *BB = I->getNodeAs<BasicBlock>();
       switch (StmtGranularity) {
       case GranularityChoice::BasicBlocks:
         buildSequentialBlockStmts(BB);
         break;
-      case GranularityChoice::ScalarIndepependence:
+      case GranularityChoice::ScalarIndependence:
         buildEqivClassBlockStmts(BB);
         break;
       }
     }
 }
 
 void ScopBuilder::buildAccessFunctions(ScopStmt *Stmt, BasicBlock &BB,
                                        Region *NonAffineSubRegion) {