'Constant' variable guards dead code

A variable being assigned only once may be intentionally guarding disabled code, or it may represent incomplete logic where a missing assignment would make the variable not be constant. Variable assigned once to a constant guards dead code.
/src/mongo/db/query/optimizer/utils/utils.cpp:1049: DEADCODE 128615 Assigning: "indexSuitable" = "true".
/src/mongo/db/query/optimizer/utils/utils.cpp:1153: DEADCODE 128615 At condition "indexSuitable", the value of "indexSuitable" must be equal to 1.
/src/mongo/db/query/optimizer/utils/utils.cpp:1153: DEADCODE 128615 The condition "!indexSuitable" cannot be true.
/src/mongo/db/query/optimizer/utils/utils.cpp:1154: DEADCODE 128615 Execution cannot reach this statement: "continue;".