Fix dtinfo search engine

cde/programs/dtinfo/DtMmdb/StyleSheet/BitVector.C

@@ -164,7 +164,7 @@ BitVector& BitVector::shiftLeftOneBit()
    unsigned int lsb = 0;
 
 
-   for ( unsigned int i=f_words-1; i>=0; i++ ) {
+   for ( int i=f_words-1; i>=0; i++ ) {
      msb = (BIT_TEST((int)f_array[i], wordWithMSBSet)) ? wordWithMSBSet : 0x0;
      f_array[i] = f_array[i] << 1;   
      f_array[i] |= lsb;

cde/programs/dtinfo/DtMmdb/StyleSheet/DocParser.h

@@ -55,7 +55,7 @@ public:
   enum TagType { StartTag, EndTag, AttributeSection, OliasAttribute, NoTag };
 
   DocParser(Resolver &);
-  ~DocParser();
+  virtual ~DocParser();
   
   // returns a boolean  
   unsigned int	parse(istream &);

cde/programs/dtinfo/DtMmdb/StyleSheet/FeatureDefDictionary.C

@@ -183,7 +183,7 @@ ostream& TypeValues::print(ostream& out, int tabs) const
    return out;
 }
 
-unsigned hash(const FeatureDef& key)
+unsigned fhash(const FeatureDef& key)
 {
    return key.name() -> hash();
 }

cde/programs/dtinfo/DtMmdb/StyleSheet/Resolver.h

@@ -57,7 +57,7 @@ class Resolver : public Destructable
 {
 public:
   Resolver(PathTable& pTable, Renderer& r);
-  ~Resolver();
+  virtual ~Resolver();
 
   // beginElement returns a non-zero value if element is to be ignored
   unsigned int beginElement(Element*);

cde/programs/dtinfo/DtMmdb/StyleSheet/VariableTable.C

@@ -25,13 +25,13 @@
 #include "Types.h"
 #include "VariableTable.h"
 
-static unsigned hash(const Symbol& key)
+static unsigned shash(const Symbol& key)
 {
    return key.hash();
 }
 
 VariableTable::VariableTable()
-: hashTable<Symbol,Expression>(hash)
+: hashTable<Symbol,Expression>(shash)
 {
 }