Rationalize some of the variable names in Solver::Options.

lm_max_diagonal -> max_lm_diagonal
lm_min_diagonal -> min_lm_diagonal
linear_solver_max_num_iterations -> max_linear_solver_iterations
linear_solver_min_num_iterations -> min_linear_solver_iterations

This follows the pattern for the other parameters in Solver::Options
where, the max/min is the first word followed by the name of the
parameter.

Change-Id: I0893610fceb6b7983fdb458a65522ba7079596a7
diff --git a/internal/ceres/levenberg_marquardt_strategy_test.cc b/internal/ceres/levenberg_marquardt_strategy_test.cc
index a5ce6a0..86302b7 100644
--- a/internal/ceres/levenberg_marquardt_strategy_test.cc
+++ b/internal/ceres/levenberg_marquardt_strategy_test.cc
@@ -82,8 +82,8 @@
   TrustRegionStrategy::Options options;
   options.initial_radius = 2.0;
   options.max_radius = 20.0;
-  options.lm_min_diagonal = 1e-8;
-  options.lm_max_diagonal = 1e8;
+  options.min_lm_diagonal = 1e-8;
+  options.max_lm_diagonal = 1e8;
 
   // We need a non-null pointer here, so anything should do.
   scoped_ptr<LinearSolver> linear_solver(
@@ -125,13 +125,13 @@
   TrustRegionStrategy::Options options;
   options.initial_radius = 2.0;
   options.max_radius = 20.0;
-  options.lm_min_diagonal = 1e-2;
-  options.lm_max_diagonal = 1e2;
+  options.min_lm_diagonal = 1e-2;
+  options.max_lm_diagonal = 1e2;
 
   double diagonal[3];
-  diagonal[0] = options.lm_min_diagonal;
+  diagonal[0] = options.min_lm_diagonal;
   diagonal[1] = 2.0;
-  diagonal[2] = options.lm_max_diagonal;
+  diagonal[2] = options.max_lm_diagonal;
   for (int i = 0; i < 3; ++i) {
     diagonal[i] = sqrt(diagonal[i] / options.initial_radius);
   }